On 23.05.2020 17:09, Kagami Rosylight via Cygwin wrote:
Hi Cygwin community,
I found that Cygwin can’t run UWP based CLI tools, as they expose their
executables as reparse points with the tag IO_REPARSE_TAG_APPEXECLINK which
Cygwin does not support.
Way to reproduce this issue on Cygwin:
1. Install Python from Microsoft Store:
https://www.microsoft.com/en-us/p/python-38/9mssztt1n39l (assuming you don’t
already have python3.8 on your PATH.)
2. Try running `python3.8` on Cygwin. It will say
“/cygdrive/c/Users/Kagami/AppData/Local/Microsoft/WindowsApps/python3.8:
Permission denied”
3. Check it’s real path by `get-childitem -path
C:/Users/Kagami/AppData/Local/Microsoft/WindowsApps/python3.8.exe` on
PowerShell. It’s `C:\Program
Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1008.0_x64__qbz5n2kfra8p0\python3.8.exe`.
4. Try running python again with that path. This succeeds.
I posted this issue on MSYS2 GitHub repo
(https://github.com/msys2/MSYS2-packages/issues/1943) but I think Cygwin is the
right place to file this.
Relevant prior works:
* Python
https://github.com/python/cpython/commit/df2d4a6f3d5da2839c4fc11d31511c8e028daf2c
* libuv
https://github.com/libuv/libuv/commit/e7ebae26247d2fee0a04547eb7f9aa8f78d4a642
* PowerShell https://github.com/PowerShell/PowerShell/pull/10331
Thanks,
-Kagami
Not clear why you expect that a Windows specific tag as
IO_REPARSE_TAG_APPEXECLINK should be supported on a Posix platform ?
Moreover all the documentation from MS seems
https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/c8e77b37-3909-4fe6-a4ea-2b9d423b1ee4
that seems a bit short to help third party in properly using it.
Regards
Marco
PS: Python 3.8 is available as Cygwin binary
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